Car puller



Feb. 12, 1935. w. E. GOODMAN 1,991,157

CAR FULLER Original Filed-May a, 1955 5 Sheets-Sheet 1 Feb. 12, 1935. w Q A 1,991,157

CAR FULLER Original Filed May 8, 1955 3 Sheets-Sheet 2 .Ziu/emaw Mag;

Feb. 12, 1935; w. E. GOODMAN CAR FULLER Original Filed May 8, 1933 3 Sheets-Sheet 3 I five/#597 Vii/[01 227 5000 11101 Patented Feb. 12, 1935 UNITED SS TATES P ATE NT OFFICE Application May 8, .1933, .Serial No. 569328 Renewed I J u'ly 14, I934 25'Glaims.

:This :inventionzrelates to improvements inacar -pullers:and :has among'other objects to provide :a new andimproved device-of thezclass descritxeii .nfmrnoveLs'implified, eflicient,;and compact con- 35 sstmctiomoperated and controlled .ina novelzand simplified manner, which .device .is particularly :adaptedzfor'usewith and to :be driven bysaaeon- 'veyor of 'the shaker or 'jigging 'type.

:Qther-obj ectsrof zmy-invention will appearrfrom "time to time asithe following specification aurooeerls.

aMy invention :may be more clearly understood with areference =to the accompanying drawings :wherein:

Figure -1 :is:a partial diagrammatic-plan 'view of :the device 'of nm invention in operation in a mine;

Figure 2=is an enlarged side elevation of the device-shown in Figure '1=with=parts*broken=away;

Figure 3 is an enlarged side elevation-of the device of my invention-With eertain-parts=broken away =and in section to more clearly show the --details thereof Figure-4 is an enlarge'cl-plan view'of the-device shown in'FigureB with parts broken away and in section'to showcertain other detailso'f the device embodying my invention than are shown in Figure '3; and

'-Figure-5 is a sectional'view taken substantially alongline "5-5 of Figure 3.

Like numerals refer to like parts throughout theseveral figures.

Referring "now in particular to the drawings illustrating one-embodiment of my invention, a shaker conveyor'pan line '10 is provided. The'pan line is reciprocably driven from suitable .6011- veyor-drive mechanism in an ordinaryomannerso that material, such as coal, may readily bem'oved there-along ina direction away'fromltheworking place and be discharged into mine cars or other material receiving means. As'herein'showmithe shaker-conveyor pan line 10 is so arranged as to "discharge material into suitable mine cars 11 on a track 12, and suitable means of a newsand'novel construction are provided for moving said cars along said track at a controlled rate of speed beneath-the discharge end of said pan line during the loading operation for controlling the loading of said cars which includes a car puller, generally'indicated by reference character 13.

With reference now in particulartothe details of the car puller 13 and certain of the novel features of my invention, a support 'frame'14 is provided. The support frame 14 may rest on .the minefloorbut is herein preferably'shownasbw zingzcarried byrjaoks 15, -15 interposed between-the mine roof :and mine bottom and is arranged (-50 that its longest dimensions extend transversely of the apanline 10. The support frame .14 is :adapted to abe held'onthe jacks 15, 15- in'various ;positions of vertical adjustment with respect rthereto bysmeans of split collars -16, 16 secured-to said sup rt 'frame .and clamped to the -jacks :15, :15 rbyrmeansrof suitablernuts andbolts I-L'I, L'Ii-in a iusual'manner. A:shaf t 18 ;is carried1 by the: sup- .10 rpoi't frame 314 :and aexterrds alongitudinally of the :pan :line 310 .and :has a winding drum '19 carried thereon forifree-rotation-with:respectthereto.

'fl'herwindingidrumlaismrovided with axratchet floiadiacent onesside thereofrand anatchet 21zadl5 :jaeenttheppposite siderthereof. Thetratchetw 2o, =-when:engaged!by:a?paw1:22 onazreckingzmember '23 married hyzthe shalt 18' for;rocking:mowement 'with respect thereto, acts as a :mean's'for aimparting rotational movement to the windingfdmm .20 mauponn'ocking movement o'f'saidrocking mem 'ber, While the ratchet v 21, .=engaged by :a :dog I24, pivntally mounted on an upstanding :bracket .25, acts as -a means'for restraining rotation of said fiwinding drum in-an opposite-direction to which v25 it isbeingdriven by the pawl 22.

-'Anarm 2'7-extends angularly downwardly from the rocking member 23 and 'has'a tension spring 28 connected to its free end, the opposite -=end of -which tension spring is-oonnected to the jack 215 .30

adjacent the winding drum '19 for holding the 'rockingm'ember 23 in'a= generally uprightpos'ition *andforminga'means against which said rocking 'member 'may react during rocking movement "thereof. Another arm 29=extendslongitudinally .35 y

from the rocking member-23 in=a generally-hori- -zontal plane and has "a bifurcated outer end 30 whichcarries a-winding drum 31. The winding drum 31 is carried on'a shaft 32 having squared ends adapted to "be engaged "-by a suitable crank 'or-wrenc'h (not'shown) -and'isheld from rotation in a :direction opposite to which itis'adapteil'to be rotated *by'means of a spring 'pressed dog 33 adapted to engage suitable ratchet teeth '34 formed integral with said "drum.

A flexible member35, "such as a wire rope or cable. is secured to -the-winding drum 31 andis adapted to .be'wound thereon. As'herein ;preferably shown, thefflexiblearrember 35 extends upwardly from the Winding drum 31 and over a guide sheave Eli-supported in abracket'ii'? extending upwardly from the support frame 14. From the guidesheavefifi, the flexiblemeniber35 extends .outwardly in alignment with the longitudinal centerline of the panlineIO and'is secured to the outer end thereof in a suitable manner so as to exert a pull on the winding drum 31 against the ratchet teeth 34 and dog 33 and move the arm 29 in an upwardly direction upon movement of said pan line in one direction and permit said arm to return to its initial starting position upon movement of said pandi-ne in an; opposite direction. f f "'j 'zj Q}; 1

It may thus be seen that upon reciprocation of the pan line 10, the flexible cable 35 will cause rocking movement of the arm 29 which will in turn rock the rocking member 23 about the axis of the shaft 18 and change the rectilinear movement ofthe shaker conveyor pan line to' rotational move-j ment through the pawl 22 engaged with the men;

the flexible cable 35 may be takn'up by .nieans of the winding drum 31 and difierences in the length of the pan line may be compensated for by meansof said winding drum in an obvious manner while "tension of the tension spring 28' may be adjusted by winding in said flexible cable on said Winding 1' 1 5 ':."1'-";:- 1

With =reference now to several other ofthe novel features ofmy invention and the means for controlling :rotation of thewindingdrum' 19 "from' a point remote from said *windi'ng drum .and increasing tensionon'the; flexible cable 35 as 'saidwindin'g drumis "being operated-, aguide' cam is carried on a 'boss :40 of the support frame-14 for pivotal movement with" respect theretol about I an axis coaxial :with theshaft -18. The: guide cam 139r2is :provided with a *depen'ding' arm 41.

zThe free :end of the-depenclingrarm lshasa'tension spring 42 connected thereto, the' opposite end of which tension spring-Ya is connected to ia rmember e3adependingfromgthe arm. 29 adjacent the-outer end' thereof -:but herein preferably shownasbeingzzdisposedinwardly of-the wind- An armr is for edgintegral with -t'he'sitmz and extends therefrom andghas a-roller i5 journaled on its outer: end,- which roller-is adapted i to ride on the upper surface of the: guide -cam 39:? Suitable means :are provided ffOrs controlling pivotal movement of the guide cam- 39 about'the -axis of the'shaft- 18 which may,-be;ofany; type but which is herein shown as: being a relatively flexible member e6 working against the tension spring 42- so that-it may be controlled; fromsa position remote from the winding drui -.19.

'When -the guide cam 39 is positioned so-that the roller 45 may ridethereon during- .the ent i 1 e stroke of the arm 29 andsrocking member 23, the pawl-22 is held in a disengaged position from the .ratchet 20 and the windingdrum-19 1s held from ;-rotation in adirection opposite to vwhich it is adaptedto be drivembymeans of the dog.24 .en

gaging the ratchet 21. Astheguide cam' 39 1s pivotally. moved about the axis oi the .sha ft .18, the pawlg22 is permittedtoengage. the teeth of the ratchet 20, ,.-The"number..of teeth which the 4 -ratchet 20 may move the winding drum 19. per

stroke of the rocking member 23 is thus controlled by movement of the guide cam 39 so that the pawl .22 maymove said windingdrum a distance of Hone two, three, or more teeth per stroke 'of said rocking member dependingupon the length of stroke otsaidrocking member. Thus a means has beenprovided for controlling the '.operation v and speed or rotation of thewinding drum a simplifiedjmanner remote from saidwinding v i It-shouldbe noted that as the guide can 39 is pivotally movedaboutthe axis of the shaft in} in such a manner as to permit the pawl 22 to engage the ratchet 20, that tension on the tension spring 42 is increased which in turn increases tension on the flexible cable 35 and maintains the required tension on said cable during the driveoperation and permits said cable to effect an imm ovedpositive controlledidrive m ans ior the amif ii n ge ns member A flexible cable 47 is adapted to be secured to and wound on the winding drum 19 and, as is herein preferably shown, extends therefrom along *ith'e' track 12 to a position remote from the mine cars ll around a sheave block 48 toward said m'in rs'andis'adapted to have its free end se- {"cureidlthgretg. as one car is being loaded et 20 for rotating the winding drum l9, Slack in and tension is applied to the flexible member 46, the wlnding'drum'iQ-may be rotated at the desired speed'controlled by the application of tension on said flexible member by the operator for moving each mine car during the loading operation and permitting the-trimming of saidrca'ntostlie proper height for the entire length thereofand :tormov- Ring the next carll beneath the discharge and of the pan line 10 after: one car hasbeen loaded. It may thus be "seenthat .a simplified device has been provided which isvoperated-by a shaker conveyor pan. line. and rcontrolledein-xa P simplified manner for-:pullingicars along gthe. trackrbeneath .the dischar e end: of: saidmandine, and-permitting said loaded without tying up a mine locomotive or necessitating the sproi-visiomof separate motor drivencar-pulling means fcn-such operation. ;i-=:Itmay also beg-seen that athe device of my invention is operated by:a;.--shaker rconveyonpanline-zby means ZOf-"8- flexiblecable in a simplified manner :4 that the arrangement-of the mechanism for driving the winding drum is! such to permitthesdevice ofzmy inventiontoj be readily adapted to varying 4 mining J conditions;

Y- that'thespeedof the winding drum mayqreadily V becontrolled-bythe flex blememberifi at apoint 20 for driving-said winding-drum; and thatthe' :device of my invention is ofa flexible construction which may be positioned at various locations with respect to the end of the pan line and which may be readily adapted to various pan lineshavdifierent stroke lengths. p H While I have herein shown-and describedone form in. which my invention may be embodied, it ,will behunderstood that the construction-or arrangement of the various parts may .be altered o r' changed withoutj departing from the; spirit .and scop'e thereof. ,fFurthermore, I do .notwish tobe.construed as limiting myself to-the particular 1 form shown, excepting as it may ,be limitedtby 'fthefapp h led claims, v :51 c1aim 'as,my invention;,v

- 1. A 1 dingtlevice comprising .a supportil a winding carried thereby, andv means for operating said winding drum comprising .a pawl and r atchet device, a shaker conveyor, and an adjustable connection from said shaker conveyor "to said" pawl and ratchet device forreciprocating .said pawl and ratchet device and rotating said 'drum. I 2. A winding device comprising a support, 'a winding drum carried thereby, and means. for operating said winding drum comprising a pawl and ratchet device, a shaker conveyor, and ia A flexible connection from said shaker. conveyorgto saidpawl and ratchet device for reciprocating eems? said-pawl and ratchet device and rptating said 3. A winding device comprising support; a winding drum carried therebygandlmeans for operating said winding drum comprising-w pawl and ratchetdevice, a shaken'conveyou'gyaz-fiexlble connection from said shaker-'conveyorato said pawl and ratchet device for recipmoatmg: said pawl and ratchet. deviceandirotating said": drum comprising a flexible 1 member having; connection with said shaker conveyor'adjaceni: one ofi its endsand said pawl and ratchetidevice" adjacent its opposite end: and:yie1dab1emeans.-formain; taining tension on said: flexiblermembesrr. 5.

4. In:a car puller; a. support, alwindingdnnn carried thereby, a flexible memberradapted: tozbe wound on said winding drum andlliave connece tion with a car remote therefromga ratchetson said Winding drumyar pawlia'daptedi to: engage said ratchet, arocking member: carrying: said pawl, a reciprocably movable member,- ami;-::a flexible member. connecting said' rocking: meme her with said reciprocably' movablsmembenc: 5. Ina car: puller, asupport; atwindingidruni carried thereby, aflexibiememberfadaptedstd be wound on said windingidrumi and have connection with a car'remote therefrom, .azratchetz on said :winding 'drum, a pawl adaptedsto engage said ratchet, a rockingrmembenearryingasaidlpawlra reciproeably movablemembemaesfleinble member connecting :said hocking memberwitln said'recim rocably movable member: andyieldablezmeans zfor maintaining tension on. said: flexible membem 21: 6. In: an apparatus off the class: desenibed;,a support *including a-'. shaft; azwinding; .drumxcare ried thereby for free rotationrwithzrespect there to, a ratchet on said drum; airocking; member-on said shaft aipawllon saidsrockingmember en-v gaging said ;ratchet; a 'yield'able :member for hold ing said: rocking membern'ir one positionuwith respect to'said shaft and a-flexible membertcon nectible' with .a reciprocably" membenzfor rocking said rocking member against said'yieldlable member; a

'. 7. In an apparatus of the; class: described; a support including a. shaft; a winding drumcarried thereby for free rotation withrespectwtherev to, a ratchet on said drum,- a. rocking;,-member on said shaft, a pawl on: said rocking member engaging said: ratchet; a yieldable memberifor holding said'rocking member insone positioniwith respect to said-shaft; a guidercamionzsaidrshazft having engagement-with said-pawl for disengage ing said pawl from: said ratchet or permitting said pawl to selectively engage said ratchet-for moving said drum 8. distance of one onmore-teeth of said ratchet per'stroke ofsaidrockingzmems ber, a yieldable connection betweensaid: guide camand said rocking. member, a reeiproeably driven member, andi a flexible men'iber: connect? ible with said reciprooably' driven-member and rocking member :for rocking said: rocking, mem ber upon reciprocation: of! said reciprocably driven member. 8. In an apparatus: of theclass: described; a support including a shaft, a winding drumcar ried thereby for free rotation with-respect-thereto, a ratchet on said drum; ra rockingi member on said shaft, a pawl on saidrocking; mem engaging said ratchet, a viewable-member for-hold, ing said rocking member in one position withmespect to said shaft, a guide cam on saidzshaft having engagement with-said pawhforrdisenga .ing said pawl from said ratchet or-permitting said pawl-to selectively'engage said ratchetzfor moving said drum'i a: distance: of one=or:-more teeth otis'aid': ratchet: upon reciprocation ofs'sai'd rocking 'membemaiyieldable connection: between said guide camz-andsaid-rockingmember, a reoiprocablyidriv'en member-:9, flexible'member con; nectible 'wlthisaidi reciprocably driven: member and: rocking memberr for' rockingr said. rocking memberiupo'n reciprocation :of: said: reciprocably drrveni member and means tors-operating: said 'guide'rcanrl fromna' position: :remot'e'? from: said windingfdiqmiy p i 9;.ln combination withra sli'akerhconveyor; a pan lined-aifsupport; a: winding drum J'Jcarried thereby;nieansfoinoperatihg said drum comprising a 'pawl and ratchet fdevice; control:- lingmeans for's'aidipawl Fand' ratchet'devicepmfi able -'f1'om =at pointremote-- from; saidwinding drum, and a flexible connection from said-pawl and ratchet device to said pan: line for reciproeating. said-'pawl andmatchet' device upon recip riocatton o'f-z said pan-line; .1

' 10. In combination with-a shaker conveyor,; a pan 'line,' aifsupport; a' winding drumcarried therebmmeans fo'r'operating -said winding drum comprising -iia'r'iawl and ratchet" device; controlling means fonsaidipawl and ratchet-idevicefoperiable" from? a; point remote fnom said? winding drum; 8, :fleidbl'ez eonnectioni fromi said 'pawl and ratchet device'to said panz'lir'i'e for.= reciprocating said pawl-"andiratchetdviee upoiizreciprocation on said pan dine and y-ieldablen'neanszinterposed between saicblpawl and ratchetzrievice and: support for maintaining tension on said flexible members 1'3 :1': r lls- 111 ombinationnwithz a shakenconveyor; a reciprocabIy movable-pan? line; winding means oprated: thereby comprisinga. winding drum;- means for-supporting: said winding drum comprislng a;p1i1ra1ity "oft jacks: adapted: to be supported' betweemazminaroot-and mine-bottom having: a support: frame carried: thereby. fon ver+ ticai adjustable:- movement with :respect. thereto, -a=-'shaft-supported"'by-' said support framehaving said winding drum mounted thereon; a rocking memberron' said shaft having apawl: pivotally mounted thereoma ratcheton said drum adapted to be engaged by'said pawl, a guide cam-1 adapted twengage'saidzpawl forholdingsaid pawl in a disengaged: position fromvs'aid' ratchet or permiting said pawl to engage said ratchet; alever arm extending from-said rocking'member having a flexiblemember connected. thereto adjacent the end therof; a connection from said flexible mem+ ber to said pan line and a. yieldable connection fi'omsaid guide cam. to 'said lever arm for bolding saidflexiblexmember in tension.

- -12..Incombination with a shaker conveyor, a reciprocably movablepanline,. and: winding means operated: thereby comprising; a." winding drum; means: for supporting saidowinding drum comprisingfa' plurality of "jacks adapted toxbesupp'orted between a: mine roof' and mine. bottom having aesupport frame carried-thereby for verticaliadjustable movement with respect thereto, azshaft: supported by said support frame having said: windingadrum mounted thereon; a rocking member: onsaid'shaft-having a pawl.- ivotally mounted thereon, a ratchet on said drumr-adapted-to beiengaged by said pawl, a. guide cam'adaptedito engagesaid pawl forholding said pawl in engagement with said ratchetor disengagingsaid pawl from'said ratchet, a lever arm extending from said rocking member having a-flexible mem ber connected thereto adjacent: its outer end, a connection from said flexible member to said pan line, a yieldable connection from said guide cam to said lever arm for holdingsaid flexible member in tension and meansoperable against said yieldable member for controlling the position of said guide cam with respect to said pawl from a position remote from saidwinding drum.

13. In combination with' ashaker conveyor, a shaker conveyor pan line havinga discharge end, a track-mounted=car adapted to be positioned adjacent the discharge end .of saidshakerconveyor pan line, and means operated by said shakerconveyor pan line for moving said track-rmounted car under the discharge endof said shaker conveyorpan line comprising a drum and a connection from said shaker conveyor pan line to said winding drum for transferring the translational movement thereof into rotational movement.

14. In combination with a shaker .conveyon-a shaker conveyor pan line having a discharge end, a track-mounted car adapted to be positionedadjacent the dischargeend of said shaker conveyor pan line, and means operated by said shaker conveyor pan line for moving said track-mounted car under the discharge end of said shaker conveyor pan line comprising a winding drum; and a 0011? nection from saidshaker conveyor pan line-to said winding drum for transferring the translational movement thereof into rotational move.- ment comprising: a pawl -andzratchet device, and a flexible operative. connection from said i-shaker conveyor pan:line to said pawland, ratchet dee Vlce.

15. In combination with a shaker conveyor, a shaker conveyor pan line having 'a discharge. .end, a track-mounted car adapted to be I positioned adjacent the discharge end of said shaker .0011? veyor pan line, and means operated by said shaker conveyor pan line for moving'said track-.mounted car under the discharge end of said shaker conveyor pan line comprising a winding drum anda. connection from said shaker conveyor pan line to said winding drum for transferring the translational movement thereof. into rotational movement comprising a pawl and ratchet device, a flexible operative connection from said shaker conveyor pan line to said pawl and ratchet device and means operable from a point remote from said winding drum for controlling the operation of said pawl and ratchet device and maintaining tension on said flexible member,

16. In a winding drum, a support, a shaft carried thereby, a winding drum-on said shaft, a ratchet on said winding drum, a rocking member on said shaft, a pawl on said rocking member engageable with said ratchet, means for holding said pawl in disengagement with said ratchet or permitting said pawl to engage said ratchet for moving said winding drum a predetermined distance for each stroke of said rocking member comprising a guide shield adapted to have operative engagement with said pawl, means for rocking said rocking member comprising an arm extending from said rocking member, a reciprocably movable member, anda flexible cable operatively connected between said arm and said reciprocably movable member, and means for operating said guide shield and maintaining tension on said flexible cable comprising an operating member connectible with said guide shield for manually moving said guide shield in one direction and a yieldable member connected between said guide shield and lever arm. a

17. In a winding drum, a support, a shaft carried thereby, a winding drum on said shaft, a

ratchet on said winding'drum, a rocking member on said shaft, a pawl on said rocking member engageable with said ratchet, a yieldable member for holding'said rocking member in an upright position, means forholding said pawl in a disengagedposition from said ratchet or permitting said pawl to engage said ratchet for moving said winding drum a predetermined distance for each stroke of said rocking member comprising a guide shield adapted to have operative engagement with said pawl, means for rocking said rocking member comprising an arm extending from said rocking member, a reciprocably movable member and a flexible cable operatively connected between said arm and said-reciprocably movable membenmeans for operating said guide shield and maintaining tension on said flexible cable comprising an operating member connectible with said guide shield for manually moving said guide shield in one direction and a yieldable member connected between said guide shield and lever arm and means for taking up slack on said flexible cable comprising a winding device on said arm held from rotation in one direction and adapted to have said flexible cable connected thereto.

I 18. In a winding drum, a support, a shaft carried thereby, a winding drum on said shaft, a ratchet 'onsaid winding drum, a rocking member on"said;.shaft; a pawl carried by said rocking member for selective engagement with said ratchet,-anotherv ratchet on said winding drum, a dog:engaging said'ratchet to hold said winding drum'zfrom rotation in one direction, means for permitting said'pawl to selectively engage said ratchet comprising a guide shield adapted to have operative-engagement with said pawl, means for rocking saidrocking member comprising an arm extending --therefrom, 1a reciprocably movable shaker conveyor pan line, a flexible member operatively connected between said shaker conveyor pan line and the end .of said arm, a tension spring connected between said supportand rockingmemher for holding saidflexible member in tension, and other means for increasing the tension on said flexible member as said pawl is permitted to disengage said ratchet comprising means for moving said guide cam, and a connection between said guide cam and arm.

19. In a winding drum, a support, a shaft carriedthereby, a winding drum on said shaft, a ratchet on said winding drum, a rocking member on said shaft, a pawl carried by said rocking member for selective engagement with said ratchet, another ratchet on said winding drum, a dog engaging said ratchet to hold said winding drum from rotation in one direction, means for permitting said pawl to selectively engage said ratchet comprising a guide shield adapted to have operative engagement with said pawl, means for rocking said rocking member comprising an arm extending therefrom, a reciprocably movable shaker conveyor pan line, a flexible member operatively connected between said shaker conveyor pan line and the end of said arm, a tension'spring connected between said support and rocking member for holding said flexible member in tension, and other means for increasing the tension on said flexible member as said pawl is permitted to disengage said ratchet comprising means for moving said guide cam, and a tension spring interposed between said guide cam and arm.

' 20. In a winding drum, a support, a shaft carried thereby, a winding drum on said shaft, a ratchet on said winding drum, a rocking memher on said shaft, a pawl carried by said rocking member for selective engagement with said ratchet, another ratchet on said winding drum, a dog engaging said ratchet to hold said winding drum from rotation in one direction, means for permitting said pawl to selectively engage said ratchet comprising a guide shield adapted to have operative engagement with said pawl, meahs for rocking said rocking member comprising an arm extending therefrom, a reciprocably movable shaker conveyor pan line, a flexible member operatively connected between said shaker conveyor pan line and the end of said arm, a tension spring connected between said support and rocking member for holding said flexible member in tension, means for moving said guide cam in such a direction as to disengage said pawl from said ratchet comprising a tension spring connected betwen said arm and guide cam, and means for moving said guide cam in such a direction as to permit saidpawl to engage said ratchet and simultaneously increase tension on said flexible cable comprising an operating member for moving said guide cam against said tension member.

21. A winding device comprising a support, a winding drum carried thereby, and means for operating said winding drum comprising a pawl and ratchet device, a shaker conveyor, and an operative connection from said shaker conveyor to said pawl and ratchet device for reciprocating said pawl and ratchet device and rotating said drum.

22. In an apparatus of the class described, a support including a shaft, a winding drum carried thereby for free rotation with respect thereto, a ratchet on said drum, a rocking memher on said shaft, a pawl on said rocking member engaging said ratchet, a yieldable member for holding said rocking member in one position with respect to said shaft, a guide cam on said shaft having engagement with said pawl for disengaging said pawl from said ratchet or permitting said pawl to selectively engage said ratchet for moving said drum a distance of one or more teeth of said ratchet per stroke of said rocking member, a yieldable connection between said guide cam and said rocking member, a reciprocably driven member, and a member connectible with said reciprocably driven member and rocking member for rocking said rocking member upon reciprocation of said reciprocably driven member.

23. In an apparatus of the class described, a

support including a shaft, 9. drum carried thereby for free rotation with respect thereto, a ratchet on said drum, a rocking member on said shaft, a pawl on said rocking member engaging -said ratchet, a yieldable member for holding said rocking member in one position with respect to said shaft, a guide cam on said shaft having engagement with said pawl for disengaging said pawl from said ratchet or permitting said pawl to selectively engage said ratchet for moving said drum a distance of one or more teeth of said ratchet upon reciprocation of said rocking member, a yieldable connection between said guide cam and said rocking member, a reciprocably driven member, a member connectible with said reciprocably driven member and rocking member for rocking said rocking member upon reciprocation of said reciprocably driven member, and means for operating said guide cam from a position remote from said winding drum.

24. In combination with a shaker conveyor, a pan line, a support, a winding drum carried thereby, means for operating said winding drum comprising a pawl and ratchet device, controlling means for said pawl and ratchet device operable from a point remote from said winding drum, an operative connection from said pawl and ratchet device to said pan line for reciprocating said pawl and ratchet device upon reciprocation of said pan line, and yieldable means interposed between said pawl and ratchet device and support for maintaining tension on said flexible member.

25. In combination with a shaker conveyor, a reciprocably movable pan line, and winding means operated thereby comprising a winding drum, means for supporting said winding drum comprising a plurality of jacks adapted to be supported between a mine roof and mine bottom having a support frame carried thereby for vertical adjustable movement with respect thereto, a shaft supported by said support frame having said winding drum mounted thereon, a rocking member on said shaft having a pawl pivotally mounted thereon, a ratchet on said drum adapted to be engaged by said pawl, a guide cam adapted to engage said pawl for holding said pawl in a disengaged position from said ratchet or permitting said pawl to engage said ratchet, a lever arm extending from said rocking member, a connection from said lever arm to said pan line and a yieldable connection from said guide cam to said lever arm.

WILLIAM E. GOODMAN. 

